Sad news, guys....Alby's tumor-thing is now worse and one eye is starting to look like popeye....I cleaned his tank extra well and took out all of the fake plants in case they were harboring bacteria. I'm not sure what else to do T.T

Is there any kind of treatment for this? I always did weekly water changes, I can't imagine the water got so dirty on its own...but during this cleaning I did notice a lot of brown slime on the sides. I cleaned it off entirely and rinsed in hot water three times just to be sure....I have no idea what this is

I just put into google images : betta fish tumors, and it brought up some awful results which sadly are practically identical to alby's suspected tumor, my advice would be try and keep alby as comfortable as possible, or if you think it would be better for alby maybe putting him to sleep would be another option.

Is there any kind of treatment for this? I always did weekly water changes, I can't imagine the water got so dirty on its own...but during this cleaning I did notice a lot of brown slime on the sides. I cleaned it off entirely and rinsed in hot water three times just to be sure....I have no idea what this is

It's a....well, I'm not sure what it's called. It's a small bulb, probably made for nightlights, but it gets quite warm. I turn it on when I wake up and turn it off before bed...he also has a little water heater.

I just put into google images : betta fish tumors, and it brought up some awful results which sadly are practically identical to alby's suspected tumor, my advice would be try and keep alby as comfortable as possible, or if you think it would be better for alby maybe putting him to sleep would be another option.

I just looked it up and oh dear, I think you're right. I feel absolutely sick with worry....I've never euthanized a fish and I'd be terrified to....it's also hard to tell how much pain he is in.

I'm so very sorry ... I've had a few bettas with cancer tumours and sometimes they are just too far gone. The tumours can start internally and just spread until they erupt at the surface. At least he had a full year with you and lots of love and attention.

I think the best thing I can do is do frequent water changes and buy some clean plants for him so he'll feel safe and comfortable....I'm scared to even look at him because of the popeye and the tumor. I feel like a horrible owner ;__; I must have done something wrong for it to get this bad.